CN108822566B - Silicon modified road asphalt pavement curing agent and preparation method thereof - Google Patents
Silicon modified road asphalt pavement curing agent and preparation method thereof Download PDFInfo
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- CN108822566B CN108822566B CN201810566823.9A CN201810566823A CN108822566B CN 108822566 B CN108822566 B CN 108822566B CN 201810566823 A CN201810566823 A CN 201810566823A CN 108822566 B CN108822566 B CN 108822566B
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- asphalt
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L95/00—Compositions of bituminous materials, e.g. asphalt, tar, pitch
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2265—Oxides; Hydroxides of metals of iron
- C08K2003/2275—Ferroso-ferric oxide (Fe3O4)
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/20—Recycled plastic
- C08L2207/22—Recycled asphalt
Abstract
The invention discloses a silicon modified road asphalt pavement curing agent which comprises the following components in percentage by mass: 20-40% of refined asphalt, 30-50% of solvent, 5-10% of silicon modifier, 1-2.5% of regenerant, 3-10% of reducing agent, 1-5% of waterproof anti-permeability agent and 1-3% of antiwear agent; the silicon modifier is organic silicon resin. The invention also discloses a preparation method of the silicon modified road asphalt pavement curing agent, which comprises the following steps: melting refined asphalt at 90-100 deg.C, sequentially adding solvent containing silicon modifier, regenerant, reducing agent, waterproof anti-penetrating agent and antiwear agent, and stirring at high speed for 20-30 min to obtain environment-friendly asphalt curing agent. The invention can effectively improve the road performance of the asphalt pavement and prolong the service life.
Description
Technical Field
The invention relates to a silicon modified road asphalt pavement curing agent and a preparation method thereof, belonging to the technical field of road asphalt pavement maintenance and functional repair.
Background
Highways are important traffic infrastructures for the nation, and most highways use asphalt pavements. The newly-built bituminous pavement is dark black, and along with long-time use in-process, many-sided comprehensive influences such as sunshine, rainwater and traffic load, bituminous pavement is ageing gradually, appears track, crack, the early damage of different degrees such as oil spilling, leads to road surface performance to reduce, the life-span shortens. It is therefore highly desirable to pre-cure the asphalt pavement early to prevent further deterioration, resulting in extensive damage and costly repairs. At present, the asphalt road maintenance agent has the advantages of less investment, low cost, good benefit, prolonging the service life of the pavement and the like, is widely applied in developed countries in Europe and America, and obtains great economic benefit and social benefit.
The asphalt curing agent is a novel material suitable for the initial conditioning of asphalt pavement, and when the asphalt curing agent is sprayed on the asphalt pavement, the asphalt curing agent can rapidly permeate into an asphalt layer to perform chemical action with aged asphalt to form a new protective layer, so that the penetration, softening point and ductility of the original aged asphalt are recovered to a great extent. The appearance of the treated pavement is restored to be black and oily, and the treated pavement has good anti-cracking and anti-seepage properties. The prior art discloses various asphalt curing agents, for example, Chinese patents 200810069206.4, 201310227803.6 and 201510845710.9 respectively disclose an asphalt curing agent, but the asphalt curing agent generally has the defects of insufficient strength, poor durability, instability and the like, and toxic aromatic hydrocarbons such as benzene, toluene, anthracene, naphthalene and the like are used, so that the asphalt curing agent is not environment-friendly and has harm to the body. Therefore, the invention modifies and perfects the components of the asphalt curing agent and develops the silicon-modified environment-friendly asphalt curing agent with stable performance.
Disclosure of Invention
The invention aims to solve the technical problem that the invention provides an energy-saving environment-friendly silicon modified road asphalt pavement curing agent with stable performance; meanwhile, the invention provides a preparation method of the silicon modified road asphalt pavement curing agent, and the high polymer material curing agent prepared by the method has stable performance and obvious waterproof and anti-permeability effects, effectively improves the road performance of the asphalt pavement and prolongs the service life.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
the silicon modified road asphalt pavement curing agent comprises the following components in percentage by mass: 20-40% of refined asphalt, 30-50% of solvent, 5-10% of silicon modifier, 1-2.5% of regenerant, 3-10% of reducing agent, 1-5% of waterproof anti-permeability agent and 1-3% of antiwear agent; the silicon modifier is organic silicon resin.
The refined asphalt comprises 70# asphalt, 90# asphalt or SBS modified asphalt.
The solvent is ethylene kettle liquid.
The regenerant is waste engine oil with a mass ratio of (2-4) to 1: kerosene.
The reducing agent is at least one of pentaerythritol and ascorbic acid.
The waterproof anti-permeability agent is one or more of sodium silanol, pure acrylic emulsion, styrene-butadiene emulsion and fluorocarbon emulsion.
The antiwear agent is iron black with the mass ratio of (0.5-2) to 1: carbon black.
A preparation method of a silicon modified road asphalt pavement curing agent comprises the following steps: melting refined asphalt at 90-100 deg.C, sequentially adding solvent containing silicon modifier, regenerant, reducing agent, waterproof anti-penetrating agent and antiwear agent, and stirring at high speed (not less than 2000 rpm) for 20-30 min to obtain environment-friendly asphalt curing agent.
The invention has the following beneficial effects: compared with other technologies, the novel silicon modified material is adopted as the modifier, the pure acrylic emulsion is waterproof and anti-permeability, the obtained high polymer material curing agent is stable in performance, and the waterproof and anti-permeability effects are obvious; the curing agent has simple preparation process, uses the raw materials for environmental protection, and can be sprayed on the road surface at normal temperature. In addition, the curing agent takes chemical plant waste liquid ethylene kettle bottom liquid as a solvent, and used waste engine oil as a regenerant, so that waste materials are changed into valuable materials, the curing agent is energy-saving and environment-friendly, the pavement performance of the asphalt pavement is effectively improved, and the service life is prolonged.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clear, the present invention is further described in detail with reference to the following embodiments. The specific embodiments described herein are merely illustrative of the invention and are not intended to be limiting.
Example 1
A silicon modified road asphalt pavement curing agent comprises the following components in parts by mass:
stirring and mixing the waste engine oil and the kerosene at normal temperature according to the mass ratio of 2:1 to obtain an asphalt regenerant;
10g of organic silicon resin modifier, 10g of ascorbic acid, 3g of antiwear agent (iron black 1g, carbon black 2 g), 5g of pure acrylic emulsion and 2g of the regenerant are added into 50g of ethylene kettle liquid, stirred for 20 minutes, then added into 20g of 70# molten refined asphalt and stirred uniformly to obtain the asphalt curing agent.
8g of the asphalt curing agent and 192g of the recycled aged asphalt were mixed and reacted at 80 ℃ for 1 hour, and the obtained asphalt was subjected to an analytical test. The softening point is reduced to 48.1 ℃ from the original 58.7 ℃, the penetration is increased to 78dmm from the original 47dmm, and the ductility is increased to >150cm from the original 50cm at 15 ℃.
Example 2
A silicon modified road asphalt pavement curing agent comprises the following components in parts by mass:
stirring and mixing the waste engine oil and the kerosene at normal temperature according to the mass ratio of 2:1 to obtain an asphalt regenerant;
10g of organic silicon resin modifier, 10g of ascorbic acid, 3g of antiwear agent (iron black 2g, carbon black 1 g), 5g of pure acrylic emulsion and 2g of the regenerant are added into 30g of ethylene kettle liquid, stirred for 20 minutes, then added into 40g of 90# molten refined asphalt and stirred uniformly to obtain the asphalt curing agent.
8g of the asphalt curing agent and 192g of the recycled aged asphalt were mixed and reacted at 80 ℃ for 1 hour, and the obtained asphalt was subjected to an analytical test. The softening point is reduced to 47.8 ℃ from the original 58.7 ℃, the penetration is increased to 79dmm from the original 47dmm, and the ductility is increased to >150cm from the original 50cm at 15 ℃.
Example 3
A silicon modified road asphalt pavement curing agent comprises the following components in parts by mass:
stirring and mixing the waste engine oil and the kerosene at normal temperature according to the mass ratio of 4:1 to obtain an asphalt regenerant;
5g of organic silicon resin modifier, 3g of ascorbic acid, 0.33g of iron oxide black, 0.67g of carbon black, 1g of sodium silicate and 2.5g of the regenerant are added into 50g of ethylene kettle liquid, stirred for 30 minutes, then added into 37.5g of SBS modified asphalt which is molten at 90 ℃, and stirred uniformly to obtain the asphalt curing agent.
8g of the asphalt curing agent and 192g of the recycled aged asphalt were mixed and reacted at 80 ℃ for 1 hour, and the obtained asphalt was subjected to an analytical test. The softening point is reduced from the original 58.7 ℃ to 47.8 ℃, the penetration is increased from the original 47dmm to 75dmm, and the ductility at 15 ℃ is increased from the original 50cm to >150 cm.
Example 4
A silicon modified road asphalt pavement curing agent comprises the following components in parts by mass:
stirring and mixing the waste engine oil and the kerosene at normal temperature according to the mass ratio of 3:1 to obtain an asphalt regenerant;
adding 8g of organic silicon resin modifier, 5g of pentaerythritol, 2g of iron oxide black, 1g of carbon black, 3g of butylbenzene emulsion and 1g of the regenerant into 40g of ethylene kettle liquid, stirring for 25 minutes, then adding into 40g of No. 70 refined asphalt melted at 100 ℃, and uniformly stirring to obtain the asphalt curing agent.
8g of the asphalt curing agent and 192g of the recycled aged asphalt were mixed and reacted at 80 ℃ for 1 hour, and the obtained asphalt was subjected to an analytical test. The softening point is reduced to 47.7 ℃ from the original 58.7 ℃, the penetration is increased to 77dmm from the original 47dmm, and the ductility is increased to more than 150cm from the original 50cm at 15 ℃.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (4)
1. A silicon modified road asphalt pavement curing agent is characterized in that: the composite material comprises the following components in percentage by mass: 20-40% of refined asphalt, 30-50% of solvent, 5-10% of silicon modifier, 1-2.5% of regenerant, 3-10% of reducing agent, 1-5% of waterproof anti-permeability agent and 1-3% of antiwear agent; the silicon modifier is organic silicon resin;
the refined asphalt comprises 70# asphalt, 90# asphalt or SBS modified asphalt; the solvent is ethylene kettle liquid; the regenerant is waste engine oil with a mass ratio of (2-4) to 1: kerosene;
the waterproof anti-permeability agent is one or more of sodium silanol, pure acrylic emulsion, styrene-butadiene emulsion and fluorocarbon emulsion.
2. The silicon modified road asphalt pavement maintenance agent as claimed in claim 1, characterized in that: the reducing agent is at least one of pentaerythritol and ascorbic acid.
3. The silicon modified road asphalt pavement maintenance agent as claimed in claim 1, characterized in that: the antiwear agent is iron black with the mass ratio of (0.5-2) to 1: carbon black.
4. The preparation method of the silicon modified road asphalt pavement maintenance agent according to claim 1, characterized by comprising the following steps: the method comprises the following steps: melting the refined asphalt at 90-100 ℃, then sequentially adding a solvent in which the silicon modifier is dissolved, a regenerant, a reducing agent, a waterproof anti-permeability agent and an antiwear agent, and stirring at a high speed for 20-30 minutes to obtain the silicon modified road asphalt pavement curing agent.
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Citations (3)
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| CN101235209A (en) * | 2008-01-04 | 2008-08-06 | 重庆诚邦科技发展有限公司 | Asphalt pavement conditioning curing agent and preparation method thereof |
| CN101235210A (en) * | 2008-01-04 | 2008-08-06 | 重庆诚邦科技发展有限公司 | Asphalt pavement curing agent and preparation method thereof |
| CN105295400A (en) * | 2015-11-26 | 2016-02-03 | 李维林 | Asphalt pavement curing agent and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| SU1250567A1 (en) * | 1984-07-16 | 1986-08-15 | Новополоцкий Политехнический Институт Им.Ленинского Комсомола Белоруссии | Binder for board construction |
| US7597999B2 (en) * | 2006-06-07 | 2009-10-06 | Conocophillips Company | Methods of preparing carbonaceous anode materials and using same |
| CN101492570B (en) * | 2008-01-23 | 2012-04-04 | 中国石油化工股份有限公司 | Hard road bitumen compositions and preparation process |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101235209A (en) * | 2008-01-04 | 2008-08-06 | 重庆诚邦科技发展有限公司 | Asphalt pavement conditioning curing agent and preparation method thereof |
| CN101235210A (en) * | 2008-01-04 | 2008-08-06 | 重庆诚邦科技发展有限公司 | Asphalt pavement curing agent and preparation method thereof |
| CN105295400A (en) * | 2015-11-26 | 2016-02-03 | 李维林 | Asphalt pavement curing agent and preparation method thereof |
Non-Patent Citations (1)
| Title |
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| "几种还原剂对沥青路面老化的还原作用";曹勇俊等;《海峡科技与产业》;20171115(第11期);第128-129、134页 * |
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